Loom-shuttle



(No Model.)

A, B. TAYLOR 8u J. P. TIRRELL. LOOM SHUTTLE. No. 336,599. Patented Feb. 23, 1886.

UNITED STATES PATENT OFFICE.

AMOS B. TAYLOR, OF VVOLLASTON, AND JACOBl P. TIRRELL, OF CHELSEA, ASSIGNORS TO SAID TAYLOR AND GEORGE F. PINKHAM, OF VOLLAS TON, M ASS AOHUSETTS.

LOOM-SHUTTLE.

SPECIFICATION forming part. of Letters Patent No. 336,599, dated February 23l 1886.

Application filed March 16, 1585. Serial No. 159,090. (No molel.)

To all whom it may concern:

Be it known that we, AMOs B. TAYLOR, of Vollaston, in the county of Norfolk and State of Massachusetts, and JACOB P. TIRRELL, of Chelsea, in the county of Suffolk and State aforesaid, citizens of the United States, have invented certain Improvements in Loom-Shuttles, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, making a part of this speciication, in which- Figure l is a central vertical section through a shuttle constructed in accordance with our invention. Fig.2 is a horizontal section th rough the same on the line'x w of Fig. l, with the cop in place upon the expanded spindle. Fig. 3 :is a central vertical section of a part of our improved shuttle with the spindle raised. Fig. 4 is a section on the line y y of Fig. 3, showing the cop in place upon the spindle before the latter has been expanded. Fig. 5 is a transverse vertical section on the line z s of Fig. 1. Fig. 6 isa sectional detail illustrating amodification of our invention to adapt it for use with a shuttle in which a bobbin is employed.

Our invention has for its object to simplify and improve the construction of that class of loom-shuttles which are provided with split spindles adapted to be expanded,when closed down into the shuttle, to hold the cop firmly in place.

To this end our invention consists in the combination, with the shuttle-body andasplit spindle pivoted therein, of a stationary wedge projecting lupward into the cop-chamber near the heel or base of the spindle,iu line with the axis thereof, and adapted to enter the split and expand the spindle when the latter is closed down into the shuttle, and be withdrawn from the said split when the spindleis raised, as hereinafter more particularly set forth.

Our invention also consists in certain details of construction, as hereinafter set forth and specifically claimed.

In the said drawings, A represents the shutile-body, of the usual form, within a cavity or recess, Z, at one end of which is pivoted the 4to allow of the cop being easily slipped thereon or the coptuhe to he removed therefrom.V To the under side of the end of the shuttlespindle B, upon the top ofthe heel or basec of 5o body A, to which the heel of the spindle is 6o dle and in line with the axis thereof,to such a height that when the spindle is closed down into the shuttle it will shut over the wedge h, which will project up through the split and separate the two parts f g, thus expanding the spindle against the hollow interior of the cop G, which is thereby held securely in place, as desired.

Then the spindle is raised on its pivot out of the shuttle, it is withdrawn from contact with the stationary wedge 71, when the two parts f g will spring together, as seen in Fig.4.

The split of the spindle is slightly enlarged or recessed out on the under side, as seen at k, Fig. 5, to facilitate the entrance of the fiat point of the wedge h..

As the spindle is split entirely through the heel, itis obvious that when it is expanded by the wedge li the two sides of the heel will he forced outward tightly against the adjacent sides of the recess b in which the spindle is pivot-ed, thus taking up the wear and causing the spindle to be held iirnily with its point exactly in line with the eye Z, and all loose lateral movement of the spindle within the shuttle is thus avoided.

That portion of the spindle near the base over which the paper cop-tube m of the cop G fits is turned down to reduce its diameter, as seen at n, so that when the cop is forced down over the raised spindle an annular space, p, will be left between the cop-tube and the spindle, as seen in Fig. 4. This reduction of the diameter of the spindle at this particular portion of its length prevents the cop-tube from tightly clasping the spindle near its heel,

as heretofore, and, consequently, as the parts f g are not compressed and held tightly tok 5 gether by the coptube they are free to be expanded by the wedge h throughout the entire length of the cop, whereby the desired amount of friction is produced against the cop-tube m and the interior of the cop G beyond the ro cop-tube, as seen in Fig. 2, and the cop is thus held iirmly on the spindle throughout its entire length, as is desirable to prevent it from becoming separated or pulled apart when the shuttle is in use. The front end, l0, of therei5 duced portion n of the spindle is made taper` ing toward theheel, thus presenting no shoulder or obstruction to the free withdrawal of the cop-tube.

Where a bobbin is used instead of a cop, a

2o spindle may be used having no turned-down or reduced portion n, for the reason that the expansion ofthe parts f g of the spindle by the stationary wedge h against any portion of the interior of the bobbin will, in most cases,

25 produce sufficient friction to hold it irmlyin place. /Vliere,however, a bobbin, H, Fig. 6,

is used, having a recess or chamber, q, at the base, the spindle B is provided with a correspending enlargement or divided collar,o-,near

3C its base,adapted to be expanded tightly against the interior of the chamber q in the bobbin,or into an annular groove, s, therein, by which means the bobbin H is held iininovably in place upon the said spindle.

What we claim as our invention, and desire to secure by letters Patent, is-

1. The combination, with a shuttle-body and a split spindle pivoted therein, of a stationary Wedge projecting upward into the copchaniber near the heel or base of the spindle, in line with the axis thereof, and adapted to enter the split and expand thespindle when the latter is closed down into the shuttle, substantially as set forth.

2. The combination, with the shuttle-body A and its pivoted split spindle B, of the plate D,secured to the under side of the body A, and having at its front turned-up end a wedge, h, extending up into the cop-chamber near the heel or base of the spindle,in line with the axis thereof, and adapted to enter the split and expand the spindle when the latter is closed down into the shuttle, substantially as described.

8. The combination, with the shuttle-body A, of the spindle B, split from near the point entirely through the heel or base, and pivoted Within the recess b, and the stationary expanding-wedge 7L. whereby when the spindleis closed down into the shuttle the sides of the heel will be forced outward against the adjacent walls ofthe recess b, substantially in the manner and for the purpose set forth.

Witness our hands this 12th day of March, A. D. 1885.

AMOS B. TAYLOR. JACOB I. TIRRELL.

In presence of- P. E. TEsOHEMAcHER, W. J. CAMBRIDGE. 

